Angularly-adjustable tool holder



Oct. 27, 1925. v 1,558363 A. L. ROSSBERG ANGULARLY ADJUSTABLE TOOL HOLDER Filed DeC. 26 1924 Patented Oct. 27, 1.925.

UNITED sTATEs ARTHUR L. ROSSBERG, OF PORTLAND, OREGON.

ANGULABLY-ADJUSTABLE TOOL HOLDER.

Application illed December 26, 1924. Serial No. 757,976.

To all lwhom t may concer/n.:

Be it known that I, ARTHUR L. Roseanne, a citizen of the United States, residing at Portland, in the lcounty of Multnomah and State of Oregon, have invented certain new and useful Im rovements in Angularly-Adjustable Tool llolders, of which the following is a specification. This invention relates to improvements in combination Itools, and particularly to that type wherein the holder for the tool selected may be adjusted angularly with respect to the operating shank.

The object of my invent-ion is to provide a tool-holder of simple, serviceable and economical constructiouthat may be adjusted and set at any angle relative to the opera-ting handle thereof within an are of ninety degrees and wherein the tool may'be rotatively actuated in any of its angular set positions with full power and etiiciency.

Further objects and advantages of the invention and 'objects relating to particular details of construction will be fully described Y and readily apparent in the'detailed description to follow.

The accompanying drawings illustrate by way of example one form of the invention, in which:

Figure 1 is a view in side elevation of an embodiment of my invention.

Fig. 2 is a. partial view of the same on an enlarged scale with one of its outer walls shown in longitudinal section.

Fig. 3 is a view in side elevation of the device with the outer frame cut away illustrating the intermeshing elements in longitudinally aligned condition taken on line 3-3 of Fig. 2.

Fig. 4 is a similar view showing the same devices disposed at an angle of ninety degrees.

Fig. 5 is a. fragmentar view similar to Fig. 3 showing the opposite side of the device, taken on line 5-5 of Fig. 2. Y

Fig. 6 isa partial view in longitudinal section of the tool-holding means.

Fig. 7 is a view in cross section on line 7-7 of Fig. 2.

Referring to said views, the reference numerals 1 and 2 indicate complementary steel barrels of substantiall struction each having a cyhndrical portion 3 and an inwardly disposed squared portion 5. Said cylindrical portions are formed with a cylindrical bore 6 and the squared identical conportions are each chambered, as at 7, communicating with said bores. One side of each said chamber is open toward the side in which the barrels relatively fiex, while the rear Wall 8 and side walls 9 and 10 are in rectangular relation. The opposite side walls 9 and 10 are extended outwardly of i the rear wall and are formed with aligned screw-threaded holes 11 in their transverse axes. Said outer edges of the side walls are formed in arcs having the holes 11 as their centers and are formed with gearteeth 12 upon oneside 9 arranged to intermesh and upon the other side 10 the inner marginal edge is beveled, -as at 13.

A frame 14 adapted to hingedly connect said barrels is composed of an inte al back 15 and sideplates 16 and 17 at rig t angles thereto adapted to overlie said rear wall and side walls of the barrels, respectively, the side-plates 16 and 17 are provided with spaced holes 18 disposed to register with the respective holes 11 in the chamber-walls. Screws 19 extend through the holes 18 where they are provided with a circular shoulder 20 and are threaded into the holes 11 to secure the barrels 1 and 2 together in an articulated joint which will admit of a relative exure of ninety degrees.

Upon each side of the gear-teeth 12 angularly directed stops 21 are provided which limit the movement-of the outer barrel 2 from a longitudinal extension of the barrels to a ninety degree angle. A vscrew' 22 is threaded in the side-plate 16 and is formed with a tapered head 23 on its inner end adapted to bear against the beveled edges 13 and thereby clamp the barrels to the frame at an set position desired.

Within the bore 6 of the barrel 1 a cylindrical spindle 24 is'rotatively mounted having an integral iange 25 at its outer end bearin upon .the outerend of the cylinder 3. T e operating shank 26 of the holder is rigidly keyed or pinned axially within said spindle. Said s indle is bifurcated at its inner end provi ing two spaced ears 27 each formed with a bearing aperture 28 in the same transverse plane as the pivotscrews 19.

A similar spindle 29 is rotatably mounted in the barrel 2 and formed with a iiange 30 analogous to the ange 25 and with spaced ears 31 apertured at 28 in the plane of the screws 19 upon the outer end ofthe joint connection between the frame 14 and the barrel 2. Spindle 29 is further formed with a tubular socket 32 terminating at its inner end in a squared recess 33. A tool, such as a screw-driver 34 provided with a round shank 35 and a flattened end 36 to extend within said recess is seated in said socket.

A universal joint is formed at the ends of each said spindle co-acting with a link 37 disposed within the chambers 7 and intermediate said spindles. Said link consists in a medial body and a pair of spaced stems 38 directed in opposite directions from said body and arranged to extend between the ears 27 and 31, respectively. A rectangular block 39 is pivotally connected by pins 40 with each of said pair of ears through the apertures 28 and upon intermediate side of thevblock is similarly connected by pins 41 vwith .the stems 38 of the link 37. A universal joint is thereby afforded at each end of the link in thetransverse plane of the hinge connection between the frame and the barrels whereby rotary motion may be trans-4 mitted to the tool from the shank 26 at whatever angle they may be disposed.

The provision of the barrels intel-meshingl through the teeth 12 intermediate the transverse axes of the universal joints at each end of the link 37 and the pivotal connections of the barrels with the fra-me ensures a true alignment of the barrel-pivots with the joints `oli' the power-shaft including the shank 26, the spindles, the link, and the universal joint at each end thereof.

The device is very simple and strong in construction and. may be employed in a wide variety of uses. Any sort of tool adapted to Vfunction with rotary motion may be used, such as a screw-driver, socketwrench or reamer. It has obvious advantages in its adaptability in reaching screws or nuts otherwise inaccessible or it may be utilized as a straight screw-driver and in which use it is extremely handy as the tool may be held upon the screw by one hand grasping-the barrels and frame to steady it while the other hand is free to exert full power upon the handle 42 without danger of dislodging the tool from the screw.

Having described my invention, what I claim, is: Y

A tool-holder, consisting in a pair of barrels each including a cylindrical portion having a bore therethroug and a rectangular chalnbered portion, said chambered portions having intern'ieshing gear-teeth upon one side and arcuate beveled edges uponv their opposite sides, a frame having sideplates overlying the side walls of said chainbered portions vhaving pivotal connectionsv therewith, a screw threaded in one of said side-plates having a tapered head bearing upon said beveled edges of the chamberportion, spindles rotatively mounted in the respective bores of said barrels, and universal-joint connections between said spindles having their axes in the transverse planes of said pivotal connections, respectively.

ARTHUR L. ROSSBERG.

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